all:# keys must be unique, i.e. only one 'hosts' per grouphosts:test1:test2:var1:value1vars:group_var1:value2children:# key order does not matter, indentation doesother_group:children:group_x:hosts:test5vars:g2_var2:value3hosts:test4:ansible_host:127.0.0.1last_group:hosts:test1# same host as above, additional group membershipvars:last_var:MYVALUE